we have red wing black birdswe have red wing black birds invade our corn and eating the top of the ears and found ears eaten on the ground. we have tried to scare them off by: yelling, running toward garden, fake snakes, fake owl, wind mills, AND PIE PANS TIED TO POST. PLEASE HELP WITH SOME IDEALS OF KEEPING THE RED WING BLACK BIRDS OUT OF THE GARDEN????????/ THANK YOU